Okay, so… the writing definitely needs work. I'm pretty sure this is a Safe class object, since nothing happens if people don't enter the object's AoE, I'm not sure how it would handle people who have dual citizenship or mixed ethnicity, and I really don't think the Foundation would be silly enough to keep testing this thing when the end result seems to be deaths of personnel who are not easy to replace. You have unnecessary capitalization pretty frequently throughout the piece, the containment procedures are both too vague (who has access to it? Why is a marker line the only thing used for security?) and too wordy (you don't need to explain why the procedures are in place; it's assumed in-universe that all the instructions for containment are there for a good reason, so overexplaining the instructions with stuff like "iving Observers ample-space to study SCP-XXXX safely around the statue" just bogs down that section with extra text).

That said, the main issue with this is:

If a subject walks into this area they will lose all connection to the frontal lobe that is involved with critical decision making, and drastically increase the amount of serotonin in the brain, causing extreme violent behavior and also large urge to kill whoever they see.

If a person walks out of SCP-XXXX's area of effect, the brain will be permanently damaged and lose all function, leading to said person's death hours later.

So you know, the "it makes you crazy until dead" approach isn't particularly interesting on its own anymore, given how many times SCPs with that effect have been written. Take a look at the articles tagged with "compulsion". Furthermore, the SCP's effect forcing someone to do something tends to be a bit of a lame narrative, since things are more interesting if there's a struggle involved, and/or if the people instead do terrible things of their own volition. Consider reading through the further discussion on the narrative issues of compulsion and addiction effects.

What you have currently is inherently unworkable given how commonly-seen and fundamentally shakey the effect is. If you really want to try to make this work, I recommend getting the base idea polished up in the Ideas and Brainstorming forum before you try fixing the draft, but I personally can't see how this would be written in a way that wouldn't come off as insensitive or offensive.